Convertible Preferred Stock and Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Temporary Equity Disclosure [Abstract]

CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY

8. CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY

On April 2, 2018, the Company closed its initial public offering with the sale of 10,350,000 shares of common stock, including shares issued upon the exercise in full of the underwriters’ over-allotment option, at a public offering price of $16.00 per share, resulting in net proceeds of $151.0 million, after deducting underwriting discounts and commissions and estimated offering expenses. Upon the closing of the IPO, all of the Company’s outstanding shares of convertible preferred stock automatically converted

into 24,168,656 shares of common stock at the applicable conversion ratio then in effect.